Bit.



0. D. JENNINGS.

Patented Nov. 24, 1914.

COLONEL D. JENNINGS,0F PARK,VIRGI1\TIA.

BIT.

Specification of Letters Patent.

Application filed February 18, 1913. Serial No. 749,189.

To all whom it may concem:

Be it known that I, COLONEL D. JENNINGS, a citizen of the United States,residing at Park, in the county of G'rayson and State of Virginia, haveinvented certain new and useful Improvements in Bits, of which thefollowing is a specification.

This invention relates to improvements in wood working tools andparticularly to bits adapted especially for manual use.

The object in view is the production of a bit which is susceptible ofapplication to an ordinary brace and especially designed for theproduction of corner blocks and rosettes.

A further object is the increasing of the facility for sharpening andmaintaining,

sharpened a bit of the type specified.

The invention constructions, ments of parts, as will be hereinafterspecitied and claimed.

In the accompanying drawing :F igure 1 is a perspective view of a bitembodying the features of the present invention, the bit being shown asengaged by the chuck of an ordinary brace. Fig. 2 is a view in sideelevation thereof, a fragment of a block operated upon by said bit beingillustrated. Fig. 3 is an end view of the bit. Fig. i is an edge viewthereof.

' eferringto the drawing by numerals, 1 indicates the shank of a bitwhich. termimates in a centering or penetrating point 2,.

and the body portion of the shank is provided with a preferablyintegral, laterally extending web 3 whose lower edge is formed into acutting surface by being beveled as indicated at 4, the beveled portionof such lower edge being formed notches 5, each produced by a concaverecess 6 formed in the material of the web 3 and inclinedcorrespondingly to the inclinacomprises certain novel combinations andarrangewith arcuate tion of the beveled portion i so as to form acutting edge about the lower terminus of each recess so that each notch5 will have a corresponding bead in the material operated upon by thebit. The material of the lower edge of theweb is curved upwardly andoutwardly, as indicated at 7 with the centering point 2, and at theouter Patented Nov. 24:, 1914.

at the juncture,

or extreme free end portion of the lower edge of the web 3 wardlyforming adapted to produce an annular groove desaid edge is curveddownsigned to be circumscribed about the main portions of the rosetteproduced by the in: termediate parts of the cutting edge of the web 3.The upper end portion of the shank 1 is preferably shaped to be engagedby any ordinary chuck 9, as for instance that of the usual brace.

Having thus described the invention, what is claimed as new is A bitcomprising a shank having a cen: tering point and an upwardly taperingWeb outstanding laterally from the shank at one side only of the latter,the web being fiat andformed with a cutting edge along its lower edgeand the material of the lower edge of the web being curved downwardlytoward the portion of the shank terminating In testimony whereof I affixmy signature.

in presence of two witnesses.

COLONEL D. JENNINGS.

Witnesses: i R. B. BALDWIN, J ASIE BALDWIN.

the outer terminus a projection 8 which is Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O.

